The city is set to take the starch out of a Washington Heights dry cleaner that is allegedly a front for illegal gambling.

An April 1 lawsuit, which asks a judge to padlock the Melanie Fashion Cleaners on Broadway for one year, says three undercover officers who have visited the establishment talked to a counter woman about placing “a sports gambling bet on some of the current basketball games.”

The plainclothed cops placed wagers of up to $40 on the Chicago Bulls, Oklahoma City Thunder and Dallas Mavericks with the woman, who then “printed an illegal gambling slip from a laptop,” the suit says.

During a Dec. 5 raid, cops arrested Clarissa Quijada, 24, of the Dominican Republic, and seized gambling receipts, cash and gambling paraphernalia, court papers show.

Quijada was charged with promoting gambling and issued a desk appearance ticket, documents show.

“Those individuals involved in the illegal activity may still have access” to the dry cleaning store so the “opportunity for illegal activity … still exists,” the lawsuit reads.

In addition to the one-year closure, the suit seeks a $1,000 penalty for each day the illegal gambling was conducted.

Melanie Fashion Cleaners was open for business on Thursday but an employee declined to comment.